What's the most important thing about packaging for medicines? Children must not be able to open them. However, they must be easy to use for adults, protect the product, remain attractive. Pharmaceutical packaging specialist Sanner GmbH has developed a new patented tablet dispenser manufactured on a CX 160 injection moulding machine from KraussMaffei.
Child-proof packaging for medical cannabis
The polypropylene container is manufactured with its lid in a small-series mould. The shot weight is 12.8 grams with a cycle time of 20 seconds. The process also includes the container lid, which must be formed while still warm, before the tablet dispenser falls freely from the mould.
The thin arms of the lid, which end in the two child-proofing press buttons, are especially tricky to manufacture. They must be charged with extreme precision in order to achieve the desired press resistance for opening. The result is a defined ‘force window’, within which the container is securely closed, but easy to open. For this purpose, tight tolerances are necessary. Precision is also required for the film hinge, which must withstand 150 opening/closing cycles without breaking. From the injection point in the lower container area, the melt is pressed through the narrowing of the hinge.
Here, the precise plasticising unit of the KraussMaffei machine proves itself. In addition, the hydraulic CX series convinces with its compact two-platen design and large clamping area for moulds. In the initial phase, the new TabTec CR tablet dispenser is produced on a CX 160-750. A CX 200 is planned for future large-series application.
Hubert Mathes, Head of Technical Operations at Sanner, said: "KraussMaffei has been our reliable partner in the field of injection moulding machines for many years. Above all, we appreciate the competent support with process engineering design and the commissioning of machines."
